After dealing a melee critical strike, your attack speed increases by 15%, and you gain 50% additional benefit from Haste granted by items. Lasts 15 sec, or until 5 melee attacks have occurred.

Flurry is a passive shaman ability learned at level 20 for those with the enhancement specialization. Flurry increases attack speed after getting a successful critical strike while also awarding additional benefit from haste granted by items.

Flurry increases attack speed for the next five swings after landing a critical strike. It is useful for high crit builds as the constant swings combined with a high rate of crits will allow Flurry to be maintained for a large portion of a fight, resulting in significantly increased DPS.

If you do not use up all five swings of Flurry within 15 seconds it will fade. This fairly long duration means that if you end a fight with a crit, you can easily start fighting a nearby mob and use your Flurry on it. Instant attacks will not be affected by Flurry.

Flurry will consume charges regardless of whether your attack hits, misses, or is dodged/parried/blocked. Critting during a Flurry will result in giving you a fresh set of charges.